Originally Posted by
himespau
The microshift downtube shifters are indexed right shifter and friction left. Sunrace should be as well.
However, Dura Ace shift levers are light years better. Shimano's spring loaded light action left shift levers are so nice since they wind up and counteract the FD return spring. I have an Ultegra SL-6401 lever that is so balanced to the FD that I don't even need any friction applied. I can loosen the attach bolt and the lever doesn't move.
John